The United States on Saturday condemned a suicide bomb attack in a mosque inside police headquarters in Saudi Arabia on Thursday, killing 15 people. The attack claimed "the lives of 15 Saudi servicemen while they were at prayer," National Security Council spokesperson Ned Price said, in a statement which also condemned a recent terror attack in Mali. At least 12 people, including four foreign U.N. contractors, died in a hostage standoff at a hotel in the African state. The siege ended early Saturday when government troops stormed the building. "The United States strongly condemns the recent deplorable terrorist attacks in Mali and Saudi Arabia," Price said. "We extend our deepest condolences to the families of the victims, and wish for the speedy recovery of the wounded. We express solidarity with the governments whose citizens were among the victims "That the victims came from different nations and faiths highlights the common cause that the United States and its partners must continue to make in the global effort to confront and defeat terrorists who have no regard for human life and diversity," he added. ISIS, which controls swaths of Syria and Iraq, has expanded across the region, claiming responsibility for attacks on two Shiite mosques in Saudi Arabia in May and a third in Kuwait in June. The Saudi interior ministry revealed on Saturday the identity of the ISIS suicide bomber who blew up the mosque in the southwestern city of Abha that killed 15. The ministry said that the name of the bomber was Yusuf Bin Salman Bin Abdullah al-Salman. He was 21 years old. The statement added that the bombing claimed the lives of six trainees and five emergency special forces members. Earlier, ISIS revealed the bomber's image, and said that his nickname was "Abu Sinan al-Najdi." Nine people were also wounded in the attack, which occurred in a mosque in an interior ministry compound in Abha, the capital of Saudi Arabia's Asir province near the border with Yemen.